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Publication numberUS1633336 A
Publication typeGrant
Publication dateJun 21, 1927
Filing dateSep 28, 1925
Priority dateSep 28, 1925
Publication numberUS 1633336 A, US 1633336A, US-A-1633336, US1633336 A, US1633336A
InventorsLarson Winford P
Original AssigneeLarson Winford P
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dentifrice
US 1633336 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Patented June 21, 1927.

UNITED STATES PATENT OFFICE.

WINIOBD I. LARSON, F MINNEAPOLIS, MINNESOTA.

DENTIFBICE.

. ll'o Drawing.

. that it is possible to render the mouth bacteria and their products,commonly called toxins,-harmless by treatingfthem with a properly prepared castor oil soap.

' I have found that mouth bacteria, such as streptococci and pneumococci, are very sentitive to the action of a weak solution of castor oil soap. I have found that the Joacteria mentioned, which are universally present inthe mouths of hum-an beings, lose their power to cause infection after being treated for one minute,-often less,-with a one percent solution of castor oil soap.

I have found that the toxins produced by streptococci and certain other bacteria are instantly rendered non-toxic by treatment with castor oil soap.

The'soap acts upon the bacteria and their oisons by being adsorbed onto their surfaces which renders them harmless. In'preparing a tooth paste by my method I IDlX a solution of castor oil soa with an abrasive,-such as calcium car onate,--together with a binder and flavoring material' which makes it. more palatable, in such proportions that some free soap is present when a quantity of the tooth paste is dissolved 40 in a small, quantity of fiuid,such as saliva, when the paste is being used. This is of fundamental importance, since the castor oil soap will, as stated above, be absorbed onto the surface of any particle with i which it comes in contact. It is therefore necessary to satisfy all of the adsorptive requirements of the particles present, and still Application filed September 28, 1925.

Serial No. 59,284.

have enough free soap present to affect the bacteria and their poisons when used in the mouth.

Applicant is aware of the fact that there are now several tooth pastes on the market which contain soap. In these tooth pastes soap is used only'for its cleansing properties,

I have examined all of these pastes and find that none either destroy the mouth bacteria or their toxins.

The reason castor oil soap acts differently from other soaps in this respect is the fact that castor oil contains practically no fatty acids other than ricinoleic acid, and therefore a castor oil soap is very soluble.

Ordinary soaps, on the other hand, contain-large quantities of stearic and palmitic acids, whose soaps are insoluble in water at ordinary temperatures. The result-is that these insoluble soaps adsorb onto their surfaces, the soluble ones, and the latter are not free to act upon bacteria and their toxins.

I claim as my invention:

1. A dentifrice containing castor oil soap.

2. A dentifrice comprising a suitable vehicle and castor oil soap mixed therewith.

3. A dentifrice containing the soap of an unsaturated fatty acid.

4. A dentifrice containing the soap of an unsaturated fatty acid mixed with abrasives and flavoring materials and capable when used of detoxifying bacterial toxins existing in the mouth of the user.

5. A dentifrice composed of a solution of the soap of an unsaturated fatty acid'in a dental cream article forming a pasteand capable when. used of detoxifying bacterial toxins existing in the mouth of the user.

6. A dentifrice containing a solution of castor oil soap in a dental cream article forming a paste and capable when used of detoxifying bacterial toxins existing in the mouth of the user.

In witness whereof, I have hereunto set myhand this 25th day of September, 1925.

WINFORD P. LARSON.

Certificate of Correction. Patent No. 1,633,336. Granted June 21, 1927, to WINFORD P. LARSON.

It is hereby certified that error appears in the printed specifioation'of the abovenumbered patent requiring correction as follows: Page 1, lines 43 and 44, for the Word absorbed read adsorbed; and thatothe'said Letters'Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice,

Signed and sealed this 18th day of October, A. D. 1927.

[SEAL-1 M. J. MOORE,

Acting Commissioner of Patents.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4130638 *Nov 21, 1977Dec 19, 1978Richardson-Merrell Inc.Mouthwash compositions
US4169885 *Mar 14, 1978Oct 2, 1979Blendax-Werke R. Schneider Gmbh & Co.Dental and oral hygiene preparations
US4175120 *Oct 30, 1978Nov 20, 1979Schole Murray LDentifrice
US4367219 *Nov 25, 1981Jan 4, 1983Schole Murray LFluoride containing dentifrice
US4393042 *Nov 20, 1981Jul 12, 1983Battista Orlando AUltra high-foam dentifrice
US4950479 *Nov 6, 1986Aug 21, 1990Hill Ira DMethod of interrupting the formation of plaque
US5032387 *Nov 6, 1986Jul 16, 1991Princeton Pharmaceutical Inc.Dental and oral hygiene preparations
US5057306 *Jun 8, 1990Oct 15, 1991Hill Ira DMethod of manufacturing oral hygiene gels
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US5057308 *Jun 8, 1990Oct 15, 1991Hill Ira DMethod of treating the oral cavity with oral hygiene preparations containing active SnF2
US5057309 *Jun 8, 1990Oct 15, 1991Hill Ira DOral hygiene preparations
US5165913 *Aug 29, 1991Nov 24, 1992Ira HillControlled release interproximal delivery system
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US7727565Apr 21, 2006Jun 1, 2010Cadbury Adams Usa LlcLiquid-filled chewing gum composition
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Classifications
U.S. Classification424/49, 514/560
International ClassificationA61Q11/00, A61K8/30, A61K8/36
Cooperative ClassificationA61K8/361, A61Q11/00
European ClassificationA61Q11/00, A61K8/36C